This article provides a brief introduction to psychological emotion theories, particularly appraisal theory. According to appraisal theory emotions are combinations of a person's appraisal of the novelty, valence, certainty, goal conduciveness, causal agency, controllability, and morality of a situation. These dimensions correspond to elements of the stories attorneys attempt to create in arguing a case. Appraisal theory puts specific content into the vague concept of reappraisal, accounting for emotional changes that go beyond the changes in valence and intensity generally studied by law and emotions scholars.